Samsung is often accused by Apple of lifting ideas for their smartphones, but now Nokia may have good reason to be targeted as well. Blink and you might miss it, but the official website for the Nokia Lumia 900 contains something that may draw the heat from Apple. The demo of the Tango video chat application rolled into their release of Windows Phone 7 contains the camera button graphics used to flip from the front to back camera in Apple's iOS.

It would appear however that this icon has been included in use on the Tango software prior to this, as evidenced in this video released by the Windows Phone 7 team on YouTube.